Airfoil-Turbulence Interaction Noise Source Identification and Reduction by Leading-Edge Serrations

G. Bampanis; M. Roger; Daniele Ragni; Francesco Avallone; Christopher Teruna

doi:10.2514/6.2019-2741

Airfoil-Turbulence Interaction Noise Source Identification and Reduction by Leading-Edge Serrations

G. Bampanis, M. Roger, Daniele Ragni, Francesco Avallone, Christopher Teruna

Wind Energy

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

The present work is aimed at assessing leading-edge serrations as an airfoil turbulenceimpingement noise (TIN) reduction mean. It relies on extended anechoic wind-tunnel testing including far-field measurements over an observation sphere to infer the three-dimensional features of TIN, and on microphone-array measurements to extract leading-edge noise in frequency. In particular this allows measuring unambiguously reductions of up to 15 dB achieved by serrations on flat plates. A preliminary study of the three-dimensional flow field around the leading edge using time-resolved tomographic particle image velocimetry (PIV) is detailed.

Original language	English
Title of host publication	25th AIAA/CEAS Aeroacoustics Conference
Subtitle of host publication	20-23 May 2019 Delft, The Netherlands
Publisher	American Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages	18
ISBN (Electronic)	978-1-62410-588-3
DOIs	https://doi.org/10.2514/6.2019-2741
Publication status	Published - 2019
Event	25th AIAA/CEAS Aeroacoustics Conference - Delft, Netherlands Duration: 20 May 2019 → 23 May 2019 Conference number: 25 https://arc.aiaa.org/doi/book/10.2514/MAERO19

Conference

Conference	25th AIAA/CEAS Aeroacoustics Conference
Country	Netherlands
City	Delft
Period	20/05/19 → 23/05/19
Internet address	https://arc.aiaa.org/doi/book/10.2514/MAERO19

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10.2514/6.2019-2741

6.2019-2741Final published version, 16.9 MB

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Bampanis, G., Roger, M., Ragni, D., Avallone, F., & Teruna, C. (2019). Airfoil-Turbulence Interaction Noise Source Identification and Reduction by Leading-Edge Serrations. In 25th AIAA/CEAS Aeroacoustics Conference: 20-23 May 2019 Delft, The Netherlands [AIAA 2019-2741] American Institute of Aeronautics and Astronautics Inc. (AIAA). https://doi.org/10.2514/6.2019-2741

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abstract = "The present work is aimed at assessing leading-edge serrations as an airfoil turbulenceimpingement noise (TIN) reduction mean. It relies on extended anechoic wind-tunnel testing including far-field measurements over an observation sphere to infer the three-dimensional features of TIN, and on microphone-array measurements to extract leading-edge noise in frequency. In particular this allows measuring unambiguously reductions of up to 15 dB achieved by serrations on flat plates. A preliminary study of the three-dimensional flow field around the leading edge using time-resolved tomographic particle image velocimetry (PIV) is detailed.",

author = "G. Bampanis and M. Roger and Daniele Ragni and Francesco Avallone and Christopher Teruna",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 25th AIAA/CEAS Aeroacoustics Conference ; Conference date: 20-05-2019 Through 23-05-2019",

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Bampanis, G, Roger, M, Ragni, D , Avallone, F & Teruna, C 2019, Airfoil-Turbulence Interaction Noise Source Identification and Reduction by Leading-Edge Serrations. in 25th AIAA/CEAS Aeroacoustics Conference: 20-23 May 2019 Delft, The Netherlands., AIAA 2019-2741, American Institute of Aeronautics and Astronautics Inc. (AIAA), 25th AIAA/CEAS Aeroacoustics Conference, Delft, Netherlands, 20/05/19. https://doi.org/10.2514/6.2019-2741

Airfoil-Turbulence Interaction Noise Source Identification and Reduction by Leading-Edge Serrations. / Bampanis, G.; Roger, M.; Ragni, Daniele ; Avallone, Francesco ; Teruna, Christopher.

25th AIAA/CEAS Aeroacoustics Conference: 20-23 May 2019 Delft, The Netherlands. American Institute of Aeronautics and Astronautics Inc. (AIAA), 2019. AIAA 2019-2741.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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